Blackwater clean out hose inlet on tank

dsettlemoir

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Joined
Apr 24, 2025
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4
Location
texas
I have a crack where the hose goes into the side of the black water tank. See pic and video.

Suggestions on a fix?
 

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I'd probably dry it off and try some Eternabond tape...it holds pretty well... no pressure there.
It is difficult to get any caulk to stick to that plastic....
 
I have used this shoe repair adhesive for many things other then why I originally purchased it. It’s what I immediately thought of when I read this post. I would use a disposable glove and spread it on with my finger. It drys to a hard rubber in a few minutes. Clean the area with alcohol and dry first and try some on a piece of cardboard first to get an idea of how to use it. It’s not like silicone or caulk it’s like nothing I’ve ever used before, works great.
 

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I have a crack where the hose goes into the side of the black water tank. See pic and video.

Suggestions on a fix?
Get 3M Black mastic pads and wrap it up. Press it onto the crack and you are done. Do not wrap it around the connecting nut or you won't be able to remove the hose from the tank. Will even stick on a wet surface.
 
I agree with many, JB Weld Plastic or even Gorilla Epoxy 2 part glue will do the repairs. Just ensure it is well clean and dry before. Both are available on Amazon and not expensive. Thanks,
 

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